<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>使用带有三个值的简写内边距</title>
</head>

<body>


    <style>
        div {
            border: 1px solid black;
            padding: 25px 50px 75px;
            background-color: lightblue;
        }
    </style>

    <h1>简写的内边距属性 - 3 个值</h1>

    <div>这个 div 元素的上内边距是 25px，左右内边距是 50px，下内边距是 75px。</div>


</body>

</html>